Sub-Doppler Laser Spectroscopy of SO2 Molecule of 30548.0 cm-1 and 31770.0 cm-1 Bands | ||
| Egyptian Journal of Solids | ||
| Article 6, Volume 27, Issue 1, 2004, Pages 65-76 PDF (109.79 K) | ||
| DOI: 10.21608/ejs.2004.149312 | ||
| Abstract | ||
| Sub-Doppler excitation spectra of SO2 molecule of the two bands 30548.0 cm−1 and 31770.0 cm−1 have been measured with the help of the Auto-Scan ring dye laser system, the spectral linewidth was 1.8 GHz when the band 30548.0 cm−1 was measured without skimmer, while the linewidth was 0.15 GHz with the collimating skimmer. The Doppler linewidth was decreased to about 0.2 GHz i.e., six times narower than before, by the collimation for the 31770.0 cm−1 band. The molecular rotational constants, the centrifugal distortion constants and the moment of inertia of the excited state were calculated. The inertial defects and the valence angle of SO2 molecule of these bands are tabulated and compared at different conditions. | ||
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